Glad you both figured some stuff out. CSS can be adjusted from the Administration panel, if needed by the way : )
FYI earlier this day we ran a cleanup to remove some unused test, inactive, spam & generally unwanted forums. In my opinion it is a good practice to do so once in a while so the forums will not receive any traffic, won't be synced during an extension update and generally will not put any impact on the FreeFlarum's performance.
If yours got removed by an accident, please contact us so we can figure this out. Good luck building your communities & stay safe everyone!